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Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Nikolay Vitkov <nvitkov@chromium.org>
98 lines
1.5 KiB
Markdown
98 lines
1.5 KiB
Markdown
---
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sidebar_label: ElementHandle.$eval
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---
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# ElementHandle.$eval() method
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Runs the given function on the first element matching the given selector in the current element.
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If the given function returns a promise, then this method will wait till the promise resolves.
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#### Signature:
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```typescript
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class ElementHandle {
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$eval<
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Selector extends string,
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Params extends unknown[],
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Func extends EvaluateFuncWith<NodeFor<Selector>, Params> = EvaluateFuncWith<
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NodeFor<Selector>,
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Params
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>,
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>(
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selector: Selector,
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pageFunction: Func | string,
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...args: Params
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): Promise<Awaited<ReturnType<Func>>>;
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}
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```
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## Parameters
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<table><thead><tr><th>
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Parameter
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</th><th>
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Type
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</th><th>
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Description
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</th></tr></thead>
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<tbody><tr><td>
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selector
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</td><td>
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Selector
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</td><td>
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The selector to query for.
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</td></tr>
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<tr><td>
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pageFunction
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</td><td>
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Func \| string
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</td><td>
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The function to be evaluated in this element's page's context. The first element matching the selector will be passed in as the first argument.
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</td></tr>
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<tr><td>
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args
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</td><td>
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Params
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</td><td>
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Additional arguments to pass to `pageFunction`.
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</td></tr>
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</tbody></table>
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**Returns:**
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Promise<Awaited<ReturnType<Func>>>
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A promise to the result of the function.
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## Example
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```ts
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const tweetHandle = await page.$('.tweet');
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expect(await tweetHandle.$eval('.like', node => node.innerText)).toBe('100');
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expect(await tweetHandle.$eval('.retweets', node => node.innerText)).toBe('10');
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```
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